A fully automatic adhesive backing machine

Abstract

A kind of full-automatic back adhesive machine, wherein the frame is provided with moving slide, operation slide, the upper surface of machine table is provided with back adhesive table, film tearing table, light bar table and finished product table;The top surface of back adhesive table is provided with positioning column, film tearing table is provided with horizontal moving guide rail and multiple adsorption slides, two positioning columns are provided on adsorption slide and back adhesive table, and the top of positioning column is pointed structure;The bottom surface of adsorption slide is fixedly provided with hollow distance adjusting slide, the inner cavity of distance adjusting slide is communicated through telescopic shaft pipe, and pneumatic clamping jaw is provided on film tearing table.The position deviation is automatically corrected by the fitting action of the pointed top of positioning column and the through hole of back adhesive, and the film tearing action is completed by the combined mechanism of pneumatic clamping jaw;At the same time, the length of telescopic shaft is stretched to ensure that adsorption slide drives back adhesive to stretch to appropriate distance, so that film pasting operation is accurately completed, position deviation can be effectively prevented during light bar and back adhesive transfer, film tearing, alignment and pasting operation, batch pasting accuracy is improved, and the scale production benefit of LED light bar is improved.

Description

Technical Field

[0001] This invention pertains to adhesive backing machine manufacturing technology, specifically relating to a fully automatic adhesive backing machine. Background Technology

[0002] In the assembly process of LCD backlight modules, LED light strips need to be attached to the back plate with adhesive. The double-sided adhesive and thermal conductivity of the adhesive are used to fix and limit the light strips and reduce the operating temperature. It is an indispensable and important component in the backlight module.

[0003] Due to the large demand for LCD backlight modules, traditional manual adhesive application is slow and has been gradually replaced by automatic or semi-automatic adhesive application machines. While current adhesive application machines can improve efficiency, the lightweight nature of LED strips and adhesive, coupled with limitations imposed by the spacing of various LED strip types, makes it easy for positional misalignment to occur during the transfer, film removal, alignment, and bonding processes. This affects the accuracy of batch adhesive application, requiring the screening and reprocessing of misaligned LED strips, reducing operational efficiency and hindering the large-scale production benefits of LED strips. Therefore, a new technical solution is needed to improve this situation. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a fully automatic adhesive backing machine to prevent positional deviations during the transfer, film removal, alignment, and bonding operations of LED strips and adhesive backing, thereby improving the accuracy of batch adhesive application and enhancing the efficiency of large-scale LED strip production.

[0005] This invention is implemented through the following technical solution: a fully automatic adhesive backing machine, comprising a machine base, wherein a horizontally arranged frame is provided at intervals above the machine base, and a horizontally arranged transfer slide and an operating slide are sequentially provided on the frame. The transfer slide and the operating slide are both connected and driven to move horizontally through horizontal actuators. The transfer slide and the operating slide are both provided with vertical actuators, and the output shafts of the two vertical actuators are both provided with vacuum suction cups; the upper surface of the machine base is sequentially provided with a horizontally arranged adhesive backing table, a film peeling table, a light strip table, and a finished product table.

[0006] The top surface of the adhesive backing platform is provided with multiple positioning posts. The film-tearing platform is supported by the output shaft of the support actuator. The film-tearing platform is provided with a transverse guide rail. Multiple adsorption slides are arranged horizontally side by side on the transverse guide rail. The top surface of the adsorption slide is provided with multiple adsorption holes. The side wall or bottom of the adsorption slide is provided with a connection hole. The adsorption holes are connected to the connection holes. The connection holes are connected to the negative pressure equipment through pipelines. Each adsorption slide is provided with two longitudinally arranged positioning posts. The top of the positioning posts is a pointed structure.

[0007] Each of the adsorption slides is fixed with a hollow adjustable slide on its bottom surface. The inner cavities of the multiple adjustable slides are connected by a telescopic shaft tube, which is composed of two hollow tubes connected in series and nested together. The maximum lengths of the multiple telescopic shaft tubes are equal. A pneumatic gripper is provided above the film-tearing stage. The pneumatic gripper is set on the longitudinal guide rail via a longitudinal sliding stage. The two longitudinal guide rails are supported by the film-tearing frame and distributed on both sides of the film-tearing stage.

[0008] Furthermore, the pneumatic gripper is made by hinged two plate-shaped horizontal plates, wherein the upper horizontal plate is in a horizontal position and is fixed on the horizontal frame, and the lower horizontal plate is in an inclined position and is driven by the output shaft of a rotary cylinder. The cylinder body of the rotary cylinder is fixed on the horizontal frame, and the horizontal frame is supported by longitudinal sliding tables on both sides.

[0009] Furthermore, the adsorption slide has an inverted U-shaped structure, and the adjustable slide is fixedly installed in the inverted U-shaped inner cavity of the adsorption slide. The horizontal guide rail is embedded in the grooves formed by the two ends of the adjustable slide and the inverted U-shaped inner cavity wall of the adsorption slide.

[0010] Furthermore, one or more side walls of the plurality of adjustable slides are provided with adjustable holes communicating with their inner cavities. In the array of the plurality of adjustable slides, the bottom of the central adjustable slide is fixedly provided with a fixing clamp, the fixing clamp is clamped to the transverse guide rail, and the fixing clamp is provided with a threaded fixing bolt, the end of the fixing bolt abutting against the transverse guide rail.

[0011] Furthermore, the arrangement of the multiple telescopic shaft tubes on the multiple adjustable slides causes the connected gas cavities to form an S-shaped tortuous loop.

[0012] Furthermore, the adhesive backing platform is supported and installed by a longitudinal moving module, which is equipped with a longitudinally moving slide.

[0013] Furthermore, the lateral actuator is a lead screw module, the vertical actuator is a cylinder, and the support actuator is an electric cylinder.

[0014] Furthermore, the surface of the vacuum suction cup is provided with clearance holes corresponding to the position of the positioning post.

[0015] Furthermore, the telescopic shaft tube is composed of an outer tube body and an inner tube body fitted together. One end of the inner tube body is fixed to the side wall of the adjustable slide table on one side, and the other end is provided with a limiting inner ring. One end of the outer tube body is provided with a limiting outer ring, and the other end of the tube body is connected to the adjustable base tube by a threaded engagement. The limiting inner ring is located between the two ends of the outer tube body, and the limiting outer ring is located between the two ends of the inner tube body. The outer diameter a of the inner tube body, the inner diameter b of the limiting outer ring, the outer diameter c of the limiting inner ring, and the inner diameter d of the outer tube body meet the following condition: a≤b<c≤d.

[0016] Furthermore, a set screw is provided through the side wall of the adjustable base tube, and the outer wall of the outer tube is provided with knurling.

[0017] The beneficial effects of this invention are as follows: This invention utilizes an adhesive backing table, a film peeling table, a light strip table, and a finished product table as operating stations for each step of the adhesive application process. Positioning pins on the adhesive backing table and the adsorption slide serve as positioning standards. The positional deviation of the adhesive backing is automatically corrected by the engagement of the pin tips with the adhesive backing through-holes. The film peeling action is completed by a combined mechanism of pneumatic grippers and supporting actuators. Simultaneously, positive pressure gas is injected into each adjustable slide, and a telescopic shaft equal-length stretching structure ensures that each adsorption slide stretches the batch of adhesive backing into an array with appropriate spacing. Then, a vacuum suction cup uniformly transports the array to the corresponding spacing of the light strips on the light strip table, thus accurately completing the film application operation. This effectively prevents positional deviations during the transfer, peeling, alignment, and bonding of light strips and adhesive backing, improving the accuracy of batch adhesive application and enhancing the efficiency of large-scale LED light strip production. Attached Figure Description

[0018] Figure 1 This is a front view of a structure according to an embodiment of the present invention;

[0019] Figure 2 This is a partial structural side view of an embodiment of the present invention;

[0020] Figure 3 This is a partial top view of an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the adsorption slide and the adjustable slide in one embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the overall operation of an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of a film-peeling operation according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the distance adjustment operation according to an embodiment of the present invention;

[0025] Figure 8 This is a partial structural schematic diagram of the telescopic shaft tube in one embodiment of the present invention.

[0026] In the diagram: 10-Machine base, 11-Positioning column, 12-Adhesive strip, 12a-Adhesive board, 13-LED light strip, 20-Frame, 21-Transfer slide, 22-Operating slide, 23-Vertical actuator, 24-Vacuum suction cup, 30-Adhesive table, 30a-Longitudinal movement module, 40-Film peeling table, 41-Support actuator, 42-Film peeling frame, 42a-Transverse guide rail, 42b-Longitudinal guide rail, 42c-Longitudinal movement slide, 43-Adsorption slide, 43 a-Connecting hole, 43b-Adsorption hole, 44-Adjustable slide, 44a-Adjustable hole, 44b-Telescopic shaft tube, 44c-Fixing clamp, 44d-Fixing bolt, 44e-Outer tube body, 44f-Inner tube body, 44g-Adjustable base tube, 44h-Limiting outer ring, 44i-Limiting inner ring, 44j-Set screw, 44k-Knurled, 45-Cylinder gripper, 45a-Rotating cylinder, 46-Horizontal frame, 50-Light strip table, 60-Finished product table. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] Example 1

[0029] like Figure 1-4 As shown, a fully automatic adhesive backing machine includes a machine base 10. A horizontally arranged frame 20 is spaced at intervals above the machine base 10. A horizontally arranged transfer slide 21 and an operating slide 22 are sequentially arranged on the frame 20. Both the transfer slide 21 and the operating slide 22 are connected and driven to move horizontally via horizontal actuators. Both the transfer slide 21 and the operating slide 22 are equipped with vertical actuators 23, and the output shafts of both vertical actuators 23 are equipped with vacuum suction cups 24. The upper surface of the machine base 10 is sequentially equipped with a horizontally arranged adhesive backing table 30, a film peeling table 40, a light strip table 50, and a finished product table 60, providing corresponding operating stations for adhesive picking, film peeling, adhesive application, and palletizing operations.

[0030] The top surface of the adhesive backing table 30 is provided with multiple positioning posts 11. The film-tearing table 40 is supported by the output shaft of the support actuator 41. The film-tearing table 40 is provided with a transverse guide rail 42a. Multiple adsorption slides 43 are arranged horizontally in parallel on the transverse guide rail 42a. The top surface of the adsorption slides 43 is provided with multiple adsorption holes 43b. The side wall or bottom of the adsorption slides 43 is provided with connecting holes 43a. The adsorption holes 43b are connected to the connecting holes 43a. The connecting holes 43a are connected to the negative pressure equipment through pipelines. Each adsorption slide 43 is provided with two longitudinally arranged positioning posts 11. The top of the positioning posts 11 is a pointed structure. When the adhesive strip 12 is placed in the area of ​​the positioning post 11, the positional deviation of the adhesive strip itself can be automatically corrected by the engagement of the pointed structure and the through hole of the adhesive strip 12.

[0031] Each adsorption slide 43 has a hollow adjustable slide 44 fixed on its bottom surface. The inner cavities of multiple adjustable slides 44 are connected by telescopic shaft tubes 44b. The telescopic shaft tubes 44b are composed of two hollow tubes connected in series and nested together. The maximum lengths of multiple telescopic shaft tubes 44b are equal. A pneumatic gripper is provided above the film-tearing stage 40. The pneumatic gripper is set on the longitudinal guide rail 42b through the longitudinal slide 42c. The two longitudinal guide rails 42b are supported by the film-tearing frame 42 and distributed on both sides of the film-tearing stage 40, thus forming a combined mechanism with film-tearing and adjustable functions.

[0032] In this embodiment, the pneumatic gripper is made of two hinged plate-shaped horizontal plates. The plate-shaped body facilitates uniform clamping force on the edge of the adhesive surface film, thereby performing a smooth tearing action. The upper horizontal plate is horizontal and fixed to the horizontal frame 46, while the lower horizontal plate is inclined and driven by the output shaft of the rotary cylinder 45a. The cylinder body of the rotary cylinder 45a is fixed to the horizontal frame 46, which is supported by the longitudinal sliding tables 42c on both sides. This ensures that the "one horizontal and one inclined" posture formed by the two horizontal plates can allow the adhesive and surface film lifted from bottom to top to enter the gripper's clamping range.

[0033] In this embodiment, as Figure 2 As shown, the adsorption slide 43 has an inverted U-shaped structure. An adjustable slide 44 is fixedly installed in the inverted U-shaped inner cavity of the adsorption slide 43. The grooves formed by the two ends of the adjustable slide 44 and the inverted U-shaped inner cavity wall of the adsorption slide 43 are embedded in the transverse guide rail 42a. This allows the two cavities formed by the adsorption slide 43 and the adjustable slide 44 to provide adsorption and adjustable functions respectively. The grooves of the two cavities are firmly set on the transverse guide rail 42a to form a sliding function mechanism.

[0034] In this embodiment, the side walls of the multiple adjustable slides 44 on both sides are provided with adjustable holes 44a communicating with their inner cavities. The multiple adjustable slides 44 form an array, such as... Figure 4 As shown, a fixing clamp 44c is fixedly installed at the bottom of the middle adjustable slide 44. The fixing clamp 44c is clamped to the transverse guide rail 42a. The fixing clamp 44c is provided with a threaded fixing bolt 44d. The end of the fixing bolt 44d abuts against the transverse guide rail 42a. In this way, the middle adjustable slide 44 is used as the positioning center for the adjustable and unfolding action. When the operating slide 22 is used for film application and transfer, the middle adjustable slide 44 can be used as the positioning point so that the positioning point and the adjustable gap of the adjustable slide 44 do not interfere with each other.

[0035] In this embodiment, the arrangement of multiple telescopic shaft tubes 44b on multiple adjustable slides 44 forms an S-shaped tortuous loop in the gas cavities that are connected, so that the positive pressure gas can flow evenly into the series gas cavities of each adjustable slide 44 along the S-shaped tortuous loop, so that the adjustable slide 44 can reach a uniformly unfolded state.

[0036] In this embodiment, the adhesive backing station 30 is supported and installed by the longitudinal movement module 30a. The longitudinal movement module 30a is equipped with a longitudinally moving slide. The adhesive backing station 30 is moved and docked to the adhesive backing supply line through the longitudinal movement module 30a. At the same time, the adhesive backing material on the adhesive backing station 30 can be automatically replenished during the operation, ensuring the full automation of the adhesive application operation.

[0037] In this embodiment, the lateral actuator is a lead screw module to ensure lateral positioning accuracy under long formation; the vertical actuator 23 is a cylinder to provide cushioning protection for the light strip and backing adhesive when the vacuum suction cup 24 is pressed down to perform the operation; the support actuator 41 is an electric cylinder to accurately move the adhesive peeling table, the adsorption slide 43 and the backing adhesive it carries to the gripping position of the cylinder gripper 45, ensuring the smooth implementation of the film peeling action.

[0038] In this embodiment, the surface of the vacuum suction cup 24 is provided with clearance holes corresponding to the position of the positioning post 11, so as to provide clearance space for the positioning post 11 when the vacuum suction cup 24 is pressed down; preferably, the adhesive backing board 12a, adhesive backing strip 12 and LED light strip 13 used in this adhesive backing machine are all pre-provided with through holes corresponding to the positioning post 11. Since the spacing between the adhesive backing strip 12 and the LED light strip 13 can be standardized, the clearance holes, through holes and positioning post 11 can be designed according to a standardized spacing, ensuring the accuracy of the related structures of the vacuum suction cup 24 and the positioning post 11 in performing various transfer, film peeling and adhesive application operations on the adhesive backing and light strip.

[0039] The working steps of this embodiment are as follows:

[0040] S1: As Figure 5 As shown, a multi-layer stack of multiple LED strips 13 is pre-placed on the LED strip table 50. A backing board 12a (an original product consisting of multiple backing strips 12 arranged horizontally and tightly, not yet split and not yet peeled off) from the automatic production line is placed on the backing board 30. The longitudinal movement module 30a is activated to adjust the longitudinal position of the backing board 30. Due to the fitting and positioning of the positioning column 11 with the perforation on the backing board 12a, its posture is kept upright during the movement, so that the backing board 30 is aligned with the vacuum suction cup 24 of the upper transfer slide 21. The vertical actuator 23 is driven to move the vacuum suction cup 24 down to adsorb the backing board 12a. Then the transfer slide 21 is lifted and moved horizontally and transported to the work position of the film peeling table 40.

[0041] S2: Activate the adhesive backing plate 12a below the vertical actuator 23, and close the vacuum suction cup 24 to allow the adhesive backing plate 12a to sit on the array of multiple adsorption slides 43. During the seating process, the perforations on the adhesive backing plate 12a only need to align with the tips of the positioning posts 11 on the surface of the adsorption slides 43. After the perforations of the adhesive backing plate 12a are fitted into the tips of the positioning posts 11 on the adsorption slides 43, the operational error can be automatically corrected by the tips of the positioning posts 11 until the adhesive backing plate 12a slides down into the corrected position of each positioning post 11. At this time, the array of adsorption slides 43 is in a closed and converged state (e.g., Figure 3 As shown), the negative pressure device is activated to allow the adsorption holes 43b on the adsorption slide 43 to adsorb and fix the adhesive backing board 12a, as shown. Figure 2 As shown, the support actuator 41 is activated to lift the film-tearing stage 40, causing the adhesive backing board 12a and its surface film to move upwards to the position of the cylinder gripper 45. Since the upper horizontal plate of the cylinder gripper 45 is in a horizontal position and the lower horizontal plate is in an inclined position, the edge of the surface film of the adhesive backing board 12a in the upward position can just enter the clamping range of the upper and lower horizontal plates. When the surface film of the adhesive backing board 12a is just attached to the upper horizontal plate of the cylinder gripper 45, the support actuator 41 is stopped and the rotary cylinder 4 is activated. 5a, rotate the lower horizontal plate and make its edge touch and push the edge of the surface film of the adhesive backing plate 12a, so that the lower horizontal plate moves the edge of the surface film upward until the lower horizontal plate and the upper horizontal plate together form a clamping action on the edge of the surface film (since the surface film has already touched the upper horizontal plate at this time, the lower horizontal plate only needs to perform a very small stroke to complete the clamping action). Re-activate the support actuator 41 to reset its output shaft, so that the adhesive tearing table and the adsorption slide 43 move downward to provide clearance for the adhesive tearing action. Figure 6 As shown, at this time, the longitudinal sliding table 42c can be opened to cause the cylinder gripper 45 to move the edge of the surface film of the adhesive backing plate 12a longitudinally, thereby tearing the surface film from one end to the other end. At this time, the adhesive backing plate 12a is adsorbed and fixed by the adsorption sliding table 43, so that the surface film is torn and separated to one end by the cylinder gripper 45. Release the gripper to let the surface film fall into the recycling container below, and complete the film tearing operation.

[0042] S3: To maintain the adsorption and fixation of the adhesive backing plate 12a by the adsorption slide 43, positive pressure gas is introduced into the interior of the adjustment slide 44 through the adjustment hole 44a, such as... Figure 7As shown, since multiple adjustable slides 44 and the telescopic shaft tube 44b between them form an S-shaped air chamber circuit, the inner cavity of each adjustable slide 44 becomes a series of air chambers. This allows the injected gas and its positive pressure to be evenly transmitted along the S-shaped air chamber to each adjustable slide 44, causing the array gaps of the multiple adjustable slides 44 to expand. At the same time, since the middle adjustable slide 44 is fixed to the transverse guide rail 42a by the fixing clamp 44c and fixing bolt 44d, the array of adjustable slides 44 will extend to both sides with the middle as the fixed position. At the same time, an equal amount of positive pressure can be injected into the adjusting holes 44a on both sides, so that both ends of the S-shaped circuit cavity receive an equal pressure boosting effect, making the gaps of the adjustable slide array uniform. The scale is uniformly enlarged until the telescopic shaft tube 44b reaches its limit design position. At this time, the adhesive backing plate 12a is pulled by the adsorption effect of the adsorption hole 43b and the expansion force of the S-shaped air cavity of the adjustable slide 44, so that the adhesive backing strips 12 arranged in close contact in the adhesive backing plate 12a are pulled apart. At the same time, the multiple positioning posts 11 can provide a large lateral pulling force by fitting the through holes of each adhesive backing strip 12 in the adhesive backing plate 12a, and ensure that each adhesive backing strip 12 is fixed by the positioning posts 11 and its position is upright during the pulling action. This allows each adjustable slide 44 to drive each adhesive backing strip 12 to the corresponding spacing position and keep the position accurate, so that the spacing of the split adhesive backing strip 12 array matches the arrangement spacing of the LED light strips 13 stacking, and the spacing adjustment operation is completed.

[0043] S4: The operating slide 22 is moved horizontally above the LED strip table 50, and the vacuum suction cup 24 is pressed down to adsorb and extract the top layer of LED strip 13 arrays on the stack above the LED strip table 50. Then, it is transferred to the film-removing station 40. The vertical actuator 23 is activated to press down its vacuum suction cup 24, aligning the multiple LED strip 13 arrays adsorbed by the vacuum suction cup 24 with the various adhesive strip 12 arrays below. Due to the spacing adjustment operation in step S3, the spacing between the adhesive strip 12 arrays is equal to the spacing between the LED strips 13 on the LED strip table 50, and the film on the surface of the adhesive strips 12 has been removed. At this point, pressing down the vacuum suction cup 24 on the operating slide 22 will allow each LED strip 13 to... The adhesive strip 12 is attached to the corresponding spacing position below. Preferably, since the positioning post 11 has a positioning function for both the adhesive strip 12 and the through hole of the LED light strip 13, when the vacuum suction cup 24 is pressed down at the beginning, the suction force of the vacuum suction cup 24 is reduced first so that the LED light strip 13 can slide laterally according to the fitting and positioning function during the process of fitting and positioning, thereby automatically compensating for the positional error caused during the transfer process. After the LED light strip 13 is completely attached to the adhesive strip 12 below under the guidance of the positioning post 11, the downward pressure of the vacuum suction cup 24 can be increased to make the adhesive strip 12 adhere tightly, ensuring the positional accuracy during the adhesive application process and completing the adhesive application operation.

[0044] S5: Close the negative pressure of the adsorption hole 43b, so that the vertical actuator 23 drives the vacuum suction cup 24 and the adhesive strip 12 array to lift the LED light strip 13 array. Then, the operating slide 22 is transferred to the finished product table 60 station. The LED light strip 13 with adhesive is lowered to the finished product table 60 position. Reset each actuator (the retraction reset of the pitch adjustment slide 44 can be completed by switching the pitch adjustment hole 44a to the negative pressure state with the help of the solenoid valve). Repeat the above operation steps to stack the LED light strip 13 finished product stacks on the finished product table 60 to complete the batch bonding operation of light strips and adhesive.

[0045] Through the above operations, with the combined action of the positioning column 11 and various adjustment, film peeling and adsorption mechanisms, positional deviation can be effectively prevented during the transfer, film peeling, alignment and bonding operations of the LED strip and backing adhesive, thereby improving the accuracy of batch adhesive application and enhancing the economies of scale in LED strip production.

[0046] Example 2

[0047] The difference between this embodiment and Embodiment 1 is that it provides an adjustable function for the extreme position of the telescopic shaft, which is suitable for applying adhesive to various types of light strips with different spacings, further improving the accuracy of this adhesive backing machine in batch application of various types of light strip products and enhancing the practical value of the invention.

[0048] like Figure 8 As shown, the telescopic shaft tube 44b is composed of an outer tube body 44e and an inner tube body 44f fitted together. One end of the inner tube body 44f is fixed to the side wall of the adjustable slide table 44 on one side, and the other end is provided with a limiting inner ring 44i. One end of the outer tube body 44e is provided with a limiting outer ring 44h, and the other end of the tube body is connected to the adjustable base tube 44g by a threaded engagement. The limiting inner ring 44i is located between the two ends of the outer tube body 44e, and the limiting outer ring 44h is located between the two ends of the inner tube body 44f. The outer diameter a of the inner tube body 44f, the inner diameter b of the limiting outer ring 44h, the outer diameter c of the limiting inner ring 44i, and the inner diameter d of the outer tube body 44e are all specified. The following conditions must be met: a≤b<c≤d, where a≤b is preferably a clearance fit between the inner tube 44f and the limiting outer ring 44h, and c≤d is preferably a clearance fit between the outer tube 44e and the limiting inner ring 44i, thus forming a stable telescopic trajectory; b<c allows the limiting outer ring 44h and the limiting inner ring 44i to form their respective limit position limiting bodies. When the adjusting slide 44 is filled with gas and expands, causing stretching in the telescopic shaft tube 44b, the adjusting slides 44 on both sides pull the inner tube 44f and the outer tube 44e respectively, causing them to move to the left and right respectively (direction depends on...). Figure 8 Since the inner diameter of the limiting outer ring 44h is smaller than the outer diameter of the limiting inner ring 44i, when stretched to the limit position, the limiting outer ring 44h and the limiting inner ring 44i can touch each other, thereby forming an accurate limit position, so that the adsorption slide 43 and its adhesive strip 12 can reach the assembly gap size that matches the LED light strip 13.

[0049] When the user changes the type of LED strip, the spacing of the LED strip 13 changes. At this time, the operator can pinch the outer wall of the outer tube 44e and rotate it to adjust the thread engagement depth of the outer tube 44e on the adjustable base tube 44g. Since the inner tube 44f is fixed to one end by the adjustable slide 44, the relative position of the outer tube 44e and the inner tube 44f after rotation and adjustment can be changed. At the same time, the distance between the limiting outer ring 44h and the limiting inner ring 44i can also be changed. Since the relative position of the two can determine the limit stretching position of the telescopic shaft tube 44b, the limit expansion distance of the adjustable slide 44 can also be changed. After the outer tube 44e reaches the set adjustment amount, the action stops, so that the adjusted outer tube 44e is kept in the new engagement position. This results in a new limit expansion distance that matches the gap of the new type of LED strip 13, which is suitable for applying adhesive to various types of LED strips with different spacings, further improving the accuracy of batch application of adhesive to various types of LED strip products by this adhesive backing machine.

[0050] In this embodiment, a set screw 44j is provided through the side wall of the adjustable base tube 44g. After the distance adjustment of the outer tube body 44e is completed, the set screw 44j can be tightened to abut against the outer tube body 44e, so that the posture of the outer tube body 44e is not affected by the movement of the mechanism. This facilitates the tight positioning of the outer tube body 44e in the screw position on the adjustable base tube 44g, and ensures the stability of the dimension of the limit stretch position of the telescopic shaft. The outer wall of the outer tube body 44e is provided with knurled 44k, which facilitates the user to adjust the limit expansion distance of the adjustable slide table 44 at will.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to impose any formal limitations on the present invention. It should be understood that, within the feature scope defined by the claims, other equivalent modifications and variations may be made to the embodiments, and these should all be covered within the protection scope of the present invention.

Claims

1. A fully automatic adhesive backing machine, comprising a machine base, characterized in that: The machine platform is equipped with horizontally arranged frames at intervals above it. The frames are sequentially equipped with horizontally arranged transfer slides and operating slides. Both the transfer slides and operating slides are driven to move horizontally by horizontal actuators. Each transfer slide and operating slide is equipped with a vertical actuator, and the output shafts of both vertical actuators are equipped with vacuum suction cups. The upper surface of the machine platform is sequentially equipped with horizontally arranged adhesive backing tables, film peeling tables, LED strip tables, and finished product tables. The top surface of the adhesive backing platform is provided with multiple positioning posts. The film-tearing platform is supported by the output shaft of the support actuator. The film-tearing platform is provided with a transverse guide rail. Multiple adsorption slides are arranged horizontally side by side on the transverse guide rail. The top surface of the adsorption slide is provided with multiple adsorption holes. The side wall or bottom of the adsorption slide is provided with a connection hole. The adsorption holes are connected to the connection holes. The connection holes are connected to the negative pressure equipment through pipelines. Each adsorption slide is provided with two longitudinally arranged positioning posts. The top of the positioning posts is a pointed structure. Each of the adsorption slides is fixed with a hollow adjustable slide on its bottom surface. The inner cavities of the multiple adjustable slides are connected by a telescopic shaft tube, which is composed of two hollow tubes connected in series and nested together. The maximum lengths of the multiple telescopic shaft tubes are equal. A pneumatic gripper is provided above the film-tearing stage. The pneumatic gripper is set on the longitudinal guide rail via a longitudinal sliding stage. The two longitudinal guide rails are supported by the film-tearing frame and distributed on both sides of the film-tearing stage.

2. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The pneumatic gripper is made of two plate-shaped horizontal plates hinged together. The upper horizontal plate is in a horizontal position and is fixed to the horizontal frame, while the lower horizontal plate is in an inclined position and is driven by the output shaft of a rotary cylinder. The cylinder body of the rotary cylinder is fixed to the horizontal frame, which is supported by longitudinal sliding tables on both sides.

3. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The adsorption slide has an inverted U-shaped structure. The adjustable slide is fixedly installed in the inverted U-shaped inner cavity of the adsorption slide. The horizontal guide rail is embedded in the grooves formed by the two ends of the adjustable slide and the inverted U-shaped inner cavity wall of the adsorption slide.

4. The fully automatic adhesive backing machine as described in claim 1, characterized in that: One or more side walls of the plurality of adjustable slides are provided with adjustable holes communicating with their inner cavities. In the array of the plurality of adjustable slides, the bottom of the middle adjustable slide is fixedly provided with a fixing clamp. The fixing clamp holds the transverse guide rail. The fixing clamp is provided with a fixing bolt that is threaded and engaged. The end of the fixing bolt abuts against the transverse guide rail.

5. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The arrangement of the multiple telescopic shaft tubes on the multiple adjustable slides causes the connected gas cavities to form an S-shaped tortuous loop.

6. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The adhesive backing platform is supported and installed by a longitudinal moving module, which is equipped with a longitudinally moving slide.

7. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The horizontal actuator is a lead screw module, the vertical actuator is a cylinder, and the supporting actuator is an electric cylinder.

8. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The surface of the vacuum suction cup is provided with clearance holes corresponding to the position of the positioning post.

9. The fully automatic adhesive backing machine as described in claim 1, characterized in that: The telescopic shaft tube is composed of an outer tube body and an inner tube body fitted together. One end of the inner tube body is fixed to the side wall of the adjustable slide table on one side, and the other end is provided with a limiting inner ring. One end of the outer tube body is provided with a limiting outer ring, and the other end of the tube body is connected to the adjustable base tube by a threaded engagement. The limiting inner ring is located between the two ends of the outer tube body, and the limiting outer ring is located between the two ends of the inner tube body. The outer diameter a of the inner tube body, the inner diameter b of the limiting outer ring, the outer diameter c of the limiting inner ring, and the inner diameter d of the outer tube body meet the following condition: a≤b<c≤d.

10. The fully automatic adhesive backing machine as described in claim 9, characterized in that: The side wall of the adjustable base tube is provided with a set screw, and the outer wall of the outer tube is provided with knurling.

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